[Bug]Parquet map/list/struct structure recognize (apache#4968)

When a parquet file contains a `Map/List/Struct` structure, Doris can not recognize the column correctly,
and throws exception 'Invalid column: xxxx', that means Doris can not find the column.
The `Map` structure will be recognized into two columns: `key and value`.
The follow is the schema of a parquet file recognized by Doris. This patch tries to solve this problem.

be/src/exec/parquet_reader.cpp

@@ -68,7 +68,11 @@ Status ParquetReaderWrap::init_parquet_reader(const std::vector<SlotDescriptor*>
         auto *schemaDescriptor = _file_metadata->schema();
         for (int i = 0; i < _file_metadata->num_columns(); ++i) {
             // Get the Column Reader for the boolean column
-            _map_column.emplace(schemaDescriptor->Column(i)->name(), i);
+            if (schemaDescriptor->Column(i)->max_definition_level() > 1) {
+                _map_column.emplace(schemaDescriptor->Column(i)->path()->ToDotVector()[0], i);
+            } else {
+                _map_column.emplace(schemaDescriptor->Column(i)->name(), i);
+            }     
         }
 
         _timezone = timezone;